<!DOCTYPE html>
<html>
<head>
 <meta charset="utf-8"/>
 <title>BINGE爬虫前的人机验证</title>
</head>
<style>
body {text-align:center}    //所有文字居中显示
</style>
<body>
 <form method="post" action="p.php">
 <p>验证码图片:<img id="img" border="1" src="captcha.php" width="150" height="50"></p>
 <a href="javascript:void(0)" rel="external nofollow"  onclick="document.getElementById('img').src='http://localhost//xxx.php'">看不清？换一个</a>
 <p>请输入图片中的验证码：<input type="text" name="session" value=""/></p>
 <p><input type="submit" value="提交" style="padding:6px 10px;"></p>
 </form>
</body>
</html>
<font color="#CC0000"><b>为了防止恶意滥用</b></font> <br> <br>
<font color="#CC0000"><b>造成服务器资源浪费</b></font> <br> <br>
<font color="#CC0000"><b>所以</b></font> <br> <br>
<font color="#CC0000"><b>我们爬虫的使用必须验证验证码</b></font>